Finding the Fourth Proportional to 30,740.32, 42,418.88 and 17,127.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,740.32 : 42,418.88 = 17,127.32 : x
2. Step 2: Convert to fraction form
   30,740.32/42,418.88 = 17,127.32/x
3. Step 3: Cross multiply
   30,740.32x = 42,418.88 × 17,127.32
4. Step 4: Simplify right side
   30,740.32x = 726,521,731.80
5. Step 5: Solve for x
   x = 726,521,731.80/30,740.32
6. Step 6: Final answer
   x = 23,634.16